LPCM (version 0.47-6)

gvessel: North Atlantic Water Temperature Data.

Description

These are observations taken over nine days in May 2000 by the German vessel Gauss in the North Atlantic.

Usage

data(gvessel)

Format

A data frame with 643 observations on the following 7 variables.

day2g

an integer for the day at which the measurement was taken.

salg

a numeric vector with measurements of salinity according to the PSS (Practical Salinity Scale).

tempg

a numeric vector with measurements of water temperature in degrees Celsius.

depthg

a numeric vector with the water depths (in meters) at which the measurements were taken.

oxyg

a numeric vector with measurements of oxygen content (mm per litre of water)

longg

longitude

latg

latitude

References

Einbeck, J., Evers, L., and Powell, B. (2010): Data compression and regression through local principal curves and surfaces, International Journal of Neural Systems, 20, 177-192.

Examples

data(gvessel)
pairs(gvessel[,c(3,2,4,5)])
tcol <- (gvessel$tempg- min(gvessel$tempg))/(max(gvessel$tempg)- min(gvessel$tempg))
require(scatterplot3d)
scatterplot3d(gvessel[,2],gvessel[,4],gvessel[,5], color=rgb(tcol,0,1-tcol))